which is authors to curate. During the bear market, especially in recent months it has become harder and harder to find new authors that we or other of the few curation projects haven't already curated
I highly doubt that. Search harder, your problem is the same as the problem of other curation projects. I see the same curators everywhere with a clear dominance of the English language. With time, curators tend to revolve around the same authors or let's just say the same subjects/themes, like some kind of elaborated circle-jerking scheme even if involuntary sometimes.
If you want to be more efficient and different from the other big and well know curation projects, don't proceed like they already do. Because right now, everyone is saying that he is the voice of the people.